Jan. 6: Baltimore police expand their investigation, form a task force and devote up to half the homicide squad to the case. Officials go on national television shows, put up billboards seeking tips and establish a help line for leads.

Jan. 12: Phylicia Barnes' 17th birthday.

Jan. 14: Two U.S. congressmen plead for help in the case.

Jan. 20: Police drain a well behind an apartment building in the 400 block of North Bend Road in Southwest Baltimore. One of the men who had last seen Barnes had lived at the location.

April 9: More than 200 police officers and volunteers spend 10 hours searching a rugged area of Patapsco Valley State Park. A body of a man was found, but nothing connected to the missing girl. Another 200 volunteers hand out fliers in the Northwest Baltimore neighborhood near her apartment.

Wednesday, April 20: Crews working on the Conowingo Dam on the Susquehanna River spot a body of a woman in the water on the Harford County side. Police pull the body out about 7:30 a.m. Several hours later, police find the body of a man; it's unclear if the two are connected.

Thursday, April 21: Authorities confirm that the female body is that of Barnes.